<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
</head>
<body>
<div id="app">
<!--  <h2 v-bind:style="key(对象名):value（属性值）">{{message}}</h2>-->
  <h2 style="color: red">{{message}}</h2>
  <h2 v-bind:style="{fontSize:'100px'}">{{message}}</h2>
  <h2 v-bind:style="{fontSize:finalSize}"> {{message}}</h2>
</div>
<script src="../js/vue.js"></script>
  <script>
    const app = new Vue({
      el:'#app',
      data:{
        message:"你好啊！！",
        finalSize:'100px'
      }
    })
  </script>
</body>
</html>